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Author:   Kev M. Salikhov
Publisher:   Springer Nature Switzerland AG
Imprint:   Springer Nature Switzerland AG
Edition:   1st ed. 2019
Weight:   0.454kg
ISBN:  

9783030268244

ISBN 10:   3030268241
Pages:   265
Publication Date:   20 November 2020
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
We will order this item for you from a manufactured on demand supplier.

Table of Contents

Preface.- Introduction.- Bimolecular spin exchange process.- Exchange interaction of two paramagnetic particles.- The nature of exchange interaction.- Spin Hamiltonian of the exchange interaction.- Exchange integral.- Exchange interaction of multielectronic systems. Electron delocalization and spin polarization.- Semiempirical estimates of the exchange integral.- Exchange integral in density functional theory.- Spin density matrix. Quantum spin coherence.- Elementary act of spin exchange. Spin dynamics of a pair of paramagnetic particles.- Equivalent and non-equivalent spin exchange.- Dipole-dipole spin-spin interaction.- Spin Hamiltonian of the dipole-dipole interaction of paramagnetic particles. -Spin dynamics of a pair of paramagnetic particles.- Comparison of spin dynamics in a pair of paramagnetic particles caused by exchange and dipole-dipole interactions.- Modified Bloch kinetic equations for the magnetic moment of a system of paramagnetic particles with allowance for spin exchange.- Spectroscopy of electron paramagnetic resonance as a method of choice for studying spin exchange.- Briefly about the use of spin exchange as a model bimolecular process.- A short history of the development of the theory of spin exchange.- References.- Theoretical calculations of the spin exchange rate constants.- Phenomenological theory.- Overview of Early Theories.- Approximation of sudden switching on and off of the  exchange interaction in a collision.- Diffuse passage of the exchange interaction region.- Kinetic equations for the spin matrices of paramagnetic particles taking into account their bimolecular collisions.- Spin exchange between free radicals.- Spin exchange for solutions containing two types of paramagnetic particles with arbitrary electron spins.- Spin exchange between charged paramagnetic particles with electron spins S = 1/2 in electrolytes.- Kinetic equations for the spin density matrices, taking into account the spin dynamics caused by the dipole-dipole interaction, in non-viscous solutions.- References.- Manifestation of spin exchange and dipole-dipole interaction in electron paramagnetic resonance spectroscopy for dilute solution of paramagnetic particles.- General solution for the shape of the spectrum in the linear response case.- A new look at the role of the transfer of spin coherence. Collective modes of evolution of the spin coherence in the system.- Collective modes of motion of the spin coherence for model systems with two and three resonant frequencies.- Analysis of the EPR spectrum of nitroxyl radicals.- How can the equivalent spin exchange rate be extracted from the EPR spectra?.- General observations.- Method for determining the rate constant of equivalent spin exchange from the analysis of EPR spectra.- Effect of saturation of EPR spectra.- General solution for the shape of the spectrum under saturation conditions.- Analysis of the saturation effect for a model system with two resonant frequencies.- Analysis of the saturation effect for a model system with a Gaussian distribution of resonant frequencies.- Analysis of the saturation effect in the EPR spectrum of nitroxyl radicals.- Method for determining the rate of spin-lattice relaxation from the analysis of the effect of saturation of the EPR spectra.- Outlook (perspectives of application of the spin exchange for studying complex systems, spin probes, etc.).- Index.

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Author Information

Internationally recognized specialist in chemical physics, Kev M. Salikhov is an active participant of international spin chemistry and magnetic radio spectroscopy communities. For the past 50 years Prof. K.M. Salikhov has made an outstanding contribution to the theoretical foundations of spin chemistry, the theory of bi-molecular spin exchange and the theory of the pulse EPR spectroscopy. K.M. Salikhov’s theoretical predictions were practically all confirmed in experiments and opened the opportunities for development of many experimental techniques and led to innovation of research methodologies throughout the world. Books on these fields of modern science which he wrote in collaboration with other scientists became textbooks for many specialists all over the world.

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